/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.flinkextended.flink.ml.operator.ops.table;

import org.flinkextended.flink.ml.operator.util.TypeUtil;
import org.apache.flink.api.common.typeinfo.TypeInformation;
import org.apache.flink.table.api.DataTypes;
import org.apache.flink.table.catalog.Column;
import org.apache.flink.table.catalog.ResolvedSchema;
import org.apache.flink.table.connector.sink.DynamicTableSink;
import org.apache.flink.table.runtime.typeutils.InternalTypeInfo;
import org.apache.flink.types.Row;

/**
 * a common flink table sink function.
 */
public abstract class TableDummySinkBase implements DynamicTableSink {
    private final TypeInformation<Row> outType;
    private String[] columnNames;
    private final TypeInformation[] colTypes;

    protected TableDummySinkBase() {
        this(ResolvedSchema.of(Column.physical("dummy", DataTypes.STRING())));
//		this(TableSchema.builder().field("dummy", Types.STRING()).build());
    }

    public TableDummySinkBase(ResolvedSchema schema) {
        outType = TypeUtil.schemaToRowTypeInfo(schema);
        columnNames = schema.getColumnNames().toArray(new String[0]);
        colTypes = schema.getColumnDataTypes().stream()
                .map(dataType -> InternalTypeInfo.of(dataType.getLogicalType()))
                .toArray(TypeInformation[]::new);
    }
}
